TST-019 MRTALPCH CHANNEL
– Rev. 2016-310
Page 20 of 20
If the vacuum level of the lifter’s vacuum gauge starts and continues to drop, this indicates
that the leak exists in either the hose to the gauge, the fitting attached to the gauge or the
vacuum gauge itself.
Examine the hose and gauge fitting for any indication of damage. If the attached parts do
not appear damaged, replace the vacuum gauge.
If the vacuum level on the ball valv
e’s vacuum gauge starts and continues to drop the
indication is that a leak exists between the ball valve and the filter connection.
If the vacuum level of either vacuum gauge holds steady and does not drop, the indication is
that the isolated section does
not leak. In this instance, if the lifter’s vacuum gauge held,
this would verify that the lifters gauge, attached fitting and hose do not leak. In the same
respect, if the ball valve’s vacuum gauge held, this would verify that the section between it
and the filter connection do not leak.
15) Continue testing, using the various processes described for eliminating sections and parts,
until any and all leaks can be located and repaired.
16) Once all parts have been reassembled and all leaks have been identified and repaired,
proceed to System Confirmation and retest the vacuum system as described.
SYSTEM CONFIRMATION
Once all leaks have been identified and repaired, reassemble all parts of the lifter.
The Vacuum Test, as described in the instruction manual, should be performed following any repair
or service to a vacuum lifter. Note: On lifters such as this one, with quick connects installed, a
second vacuum test should be performed with the quick connects disconnected. All parts must be
verified in relation to their function and the lifter must pass the Vacuum Test before returning the
lifter to operation.
